Is my head on straight?

OK so I am totally and completely losing it or maybe it's already gone I don't know. Yesterday me and the kids went into town to get a few groceries and when we got back my hands were full of bags and Karli asked to unlock the door, it's her new favorite way to help mommy, so I let her and we came in the house and I thought I had grabbed the keys. So then it comes time to go get my kids off the bus because it was snowing and I can't find my keys anywhere. Thank goodness for my friend Melissa for seeing then walking in the snow and picking them up.Karli says I left them in the door and they are not there. I have turned my house upside down looking for them. (they are the only set I have to my car) All I can figure is someone saw them in my door and decided to keep them. So now I have to change my door knob to my house and get new keys cut for my car. My hubby is not pleased to say the least:( Oh well life happens right? Hopefully my mind returns soon. I could really use it.